SoShaderStateMatrixParameter Class Reference
[Shaders]

Uniform shader parameter node storing an OpenGL state matrix. More...

#include <Inventor/nodes/SoShaderParameter.h>

Inheritance diagram for SoShaderStateMatrixParameter:

List of all members.

Public Types
enum	MatrixType {   MODELVIEW,   PROJECTION,   TEXTURE,   MODELVIEW_PROJECTION }
enum	MatrixTransform {   IDENTITY,   TRANSPOSE,   INVERSE,   INVERSE_TRANSPOSE }
Public Member Functions
virtual SoType	getTypeId () const
	SoShaderStateMatrixParameter ()
virtual bool	isEqual (const SoUniformShaderParameter *param) const
Static Public Member Functions
static SoType	getClassTypeId ()
Public Attributes
SoSFEnum	matrixType
SoSFEnum	matrixTransform

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Detailed Description

Uniform shader parameter node storing an OpenGL state matrix.

This node allows the application to provide a uniform parameter of type OpenGL state matrix to a shader object, e.g. SoFragmentShader.

Uniform shader parameter nodes are usually added to the shader object's parameter field to affect only that specific shader program, but can also be inserted in the scene graph and affect all subsequent shader programs.

See the base classes SoShaderParameter and SoUniformShaderParameter for details.

This parameter should be only used with NVIDIA Cg (has no effect otherwise) and only if the profile is neither arbvp1 nor arbfp1. With either of the profiles arbvp1 and arbfp1, the OpenGL state matrix is directly accessible from the variable glstate.matrix.

NOTE: Using this parameter may slow down the rendering process because each SoTransform node in the scene graph below the SoShaderProgram will break the render cache.

FILE FORMAT/DEFAULT

ShaderStateMatrixParameter {

name	""
identifier	0
matrixType	MODELVIEW
matrixTransform	1 0 0 0
	0 1 0 0
	0 0 1 0
	0 0 0 1
shaderType	VERTEX

}

SEE ALSO

SoShaderParameter, SoUniformShaderParameter, SoShaderParameter1f, SoShaderParameter1i, SoShaderParameter2f, SoShaderParameter2i, SoShaderParameter3f, SoShaderParameter3i, SoShaderParameter4f, SoShaderParameter4i, SoShaderParameterArray1f, SoShaderParameterArray1i, SoShaderParameterArray2f, SoShaderParameterArray2i, SoShaderParameterArray3f, SoShaderParameterArray3i, SoShaderParameterArray4f, SoShaderParameter4i, SoShaderParameterMatrix, SoShaderParameterMatrixArray, SoShaderObject, SoShaderProgram.

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Member Enumeration Documentation

enum SoShaderStateMatrixParameter::MatrixTransform

Matrix transformation possible values.

Enumerator:

IDENTITY	The state matrix is unchanged (default).
TRANSPOSE	Transpose the state matrix.
INVERSE	Invert the state matrix.
INVERSE_TRANSPOSE	Invert the transposed state matrix.

enum SoShaderStateMatrixParameter::MatrixType

Matrix type possible values.

Enumerator:

MODELVIEW	The state matrix is the modelview matrix.
PROJECTION	The state matrix is the the projection matrix.
TEXTURE	The state matrix is the current texture matrix.
MODELVIEW_PROJECTION	The state matrix is the modelview projection matrix (default value).

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Constructor & Destructor Documentation

SoShaderStateMatrixParameter::SoShaderStateMatrixParameter

(

)

Constructor.

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Member Function Documentation

static SoType SoShaderStateMatrixParameter::getClassTypeId

(

)

[static]

Returns the type identifier for this class.

Reimplemented from SoUniformShaderParameter.

virtual SoType SoShaderStateMatrixParameter::getTypeId

(

)

const [virtual]

Returns the type identifier for this specific instance.

Reimplemented from SoUniformShaderParameter.

virtual bool SoShaderStateMatrixParameter::isEqual

(

const SoUniformShaderParameter *

param

)

const [virtual]

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Member Data Documentation

SoSFEnum SoShaderStateMatrixParameter::matrixTransform

Specifies the transformation to be applied to the state matrix.

SoSFEnum SoShaderStateMatrixParameter::matrixType

Specifies the type of the state matrix.

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The documentation for this class was generated from the following file:

• Inventor/nodes/SoShaderParameter.h